Dont know anything about the Sig 213, but I had the G2 and really liked it. was able to TC any and all coils. Kanthal, SS, Nichrome... Fired down to .007 coils. Best coil for me was a .1 dual fused claptons. set teh TC for 490F at 150 watts. never burned my rayon, never scorched my juice. Just plain worked. The oly reason i got rid of it was that it felt a bit big and bulky in my hand and I got an offer of a trade for a mod that I had been wanting for over a year. for me that was a no brainer. Ill be buying another G2 though. it jst worked great.